What about the phone app? On my 6700, I have smartskey set so that if I hit the dpad up it shows me my speed dial and down shows me my recent call list. Is this already built into the wx (like it used to be on WM2003) or is it still missing? Makes a huge difference for one-handed use.

yes smartkeys also did a real close. just hold down the right softkey. the 6700 diffently needed an app like smartkeys, which made it A LOT easier to you one handed. the treo has never had a problem with one handed.